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A kind of preparation method of candied fruit-shaped one-dimensional gold nanoparticles

A gold nanoparticle, candied haws-shaped technology, applied in the field of preparation of candied haws-shaped one-dimensional gold nanoparticles, to achieve the effect of novel and unique structure, clear product structure, mild and controllable conditions

Inactive Publication Date: 2016-06-22
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the products obtained by the above methods are mostly straight gold nanorods.
And some other one-dimensional anisotropic gold nanomaterials, such as sugar-coated gold nanostructures, have not been reported in the literature so far.

Method used

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  • A kind of preparation method of candied fruit-shaped one-dimensional gold nanoparticles
  • A kind of preparation method of candied fruit-shaped one-dimensional gold nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method of sugar-coated one-dimensional gold nanoparticles, the steps are as follows:

[0037] (1) Prepare sodium dodecyl sulfate (SDS, 45wt%)-aminobutyric acid (0.5wt%)-chloroauric acid (HAuCl 4 , 0.03M aqueous solution) liquid crystal system, put it into a 25°C incubator after mixing, and react for 72h;

[0038] (2) Dilute the reaction system with water, centrifuge, remove the supernatant, collect the precipitate and obtain the product, and observe the obtained product through a transmission electron microscope to present a variety of shapes, including two-dimensional gold nanodisks, one-dimensional sugar-coated haws and spherical particles, wherein The diameter of one-dimensional candied haws-like gold nanoparticles is about 50nm, and the length is 100-200nm, accounting for a small proportion in all products.

Embodiment 2

[0040] A preparation method of sugar-coated one-dimensional gold nanoparticles, the steps are as follows:

[0041] (1) Prepare sodium dodecyl sulfate (SDS, 45wt%)-aminobutyric acid (1.5wt%)-chloroauric acid (HAuCl 4 , 0.03M aqueous solution) liquid crystal system, put it into a 25°C incubator after mixing, and react for 72h;

[0042] (2) Dilute the reaction system with water, centrifuge, remove the supernatant, collect the precipitate to obtain the product, and observe through a transmission electron microscope that the obtained product presents a one-dimensional candied haws-like structure with a diameter of 100-120nm and a length of 500-900nm.

Embodiment 3

[0044] A preparation method of sugar-coated one-dimensional gold nanoparticles, the steps are as follows:

[0045] (1) Prepare sodium dodecyl sulfate (SDS, 45wt%)-aminobutyric acid (2.5wt%)-chloroauric acid (HAuCl 4 , 0.03M aqueous solution) liquid crystal system, put it into a 25°C incubator after mixing, and react for 72h;

[0046] (2) Dilute the reaction system with water, centrifuge, remove the supernatant, collect the precipitate and obtain the product, and observe the obtained product through a transmission electron microscope to present various shapes. mm, occasionally one-dimensional candied haws with few particles.

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Abstract

The invention discloses a preparation method of candied fruit one-dimensional gold nanoparticles. The method is as follows: anionic surfactant-biomolecule A-chloroauric acid (HAuCl 4 ) mixed system is a reaction system, and the one-dimensional candied fruit-like gold nanoparticles are obtained by reaction at room temperature. The method of the invention has the advantages of simple and easy reaction system and mild conditions; the reducing agent is a biomolecule and has the characteristics of environmental friendliness; the product morphology and particle size are controllable, the yield is large and the structure is clear.

Description

technical field [0001] The invention relates to a preparation method of one-dimensional gold nanoparticles, in particular to a preparation method of sugar-coated one-dimensional gold nanoparticles. Background technique [0002] Noble metal nanoparticles with anisotropic geometry, especially one-dimensional or two-dimensional gold nanoparticles, exhibit different optical absorption and emission spectral properties from spherical particles and bulk materials, such as metal-enhanced fluorescence, surface-enhanced Raman scattering, It has great application value in the fields of media sensing, cancer hyperthermia, drug release control, nano-optical imaging, and local electromagnetic field enhancement. One-dimensional gold nanomaterials, such as gold nanorods and gold nanowires, have more exotic optical and electrical properties than spherical particles, and the synthesis method is relatively simple. Gold nanorods can be self-assembled to obtain one-dimensional, two-dimensional ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24B22F1/00B82Y40/00
Inventor 王庐岩王海路王力
Owner UNIV OF JINAN